Atom Investors’s Builders FirstSource BLDR Stock Holding History

Atom Investors’s Portfolio BLDR Stock Details BLDR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$592K	Sell	6,620 -95,443	-94%	-$7.62M	0.05%	520
2026 Q1	$8.4M	Buy	102,063 +50,902	+99%	+$5.44M	0.6%	18
2025 Q4	$5.26M	Buy	51,161 +10,644	+26%	+$1.2M	0.42%	60
2025 Q3	$4.91M	Buy	+40,517	New	+$5.38M	0.37%	73
2025 Q2	–	Sell	-2,380	Closed	-$297K	–	623
2025 Q1	$297K	Sell	2,380 -1,040	-30%	-$151K	0.04%	364
2024 Q4	$489K	Buy	+3,420	New	+$605K	0.06%	315
2024 Q3	–	Sell	-31,543	Closed	-$4.37M	–	475
2024 Q2	$4.37M	Buy	+31,543	New	+$5.35M	0.44%	71
2024 Q1	–	Sell	-10,597	Closed	-$1.77M	–	579
2023 Q4	$1.77M	Buy	+10,597	New	+$1.41M	0.31%	109
2023 Q3	–	Sell	-4,938	Closed	-$672K	–	439
2023 Q2	$672K	Buy	+4,938	New	+$549K	0.26%	85

Other funds holding BLDR

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Atom Investors's BLDR Position: Q2 2026 in Review

Atom Investors reduced its Builders FirstSource (BLDR) stake by 94% in Q2 2026, selling an estimated $7.62M and leaving 6,620 shares worth $592K. The position accounts for 0.05% of the portfolio, ranked #520.

Atom Investors first reported a position in BLDR in Q2 2023 and has held it in 9 quarters since. The position peaked at $8.4M in Q1 2026. 671 funds tracked by Wall St. Rank hold BLDR as of Q2 2026.

Atom Investors held 6,620 shares of Builders FirstSource worth $592K as of Q2 2026.
Atom Investors sold 95,443 Builders FirstSource shares in Q2 2026, an estimated $7.62M.
Builders FirstSource made up 0.05% of Atom Investors's portfolio in Q2 2026, its #520 holding.
Atom Investors first reported a position in Builders FirstSource in Q2 2023 and has held it in 9 quarters since.
Atom Investors's Builders FirstSource position peaked at $8.4M in Q1 2026.
671 funds tracked by Wall St. Rank held Builders FirstSource as of Q2 2026.

Based on Atom Investors's 13F filing for Q2 2026, filed 14 Aug 2026.